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Old 04-18-2012   #1
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Default HiFi4250 4 Channel 250 x 4

The new HiFi4250D is a full-range class d 4 channel amplifier featuring high efficiency and Burr Brown.
250 x 4 @ 4 ohms RMS
450 x 4 @ 2 ohms RMS
900 x 2 @ 4 ohms RMS
10" x 9.5 x 2.25"
www.mmatsproaudio.com
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Old 04-18-2012   #2
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Old 04-18-2012   #3
 
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Default Re: HiFi4250 4 Channel 250 x 4

That is a tremendous amount of power in a small foot print. Any shots of the insides?
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Old 04-18-2012   #4
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Default Re: HiFi4250 4 Channel 250 x 4

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Originally Posted by alachua View Post
That is a tremendous amount of power in a small foot print. Any shots of the insides?
I can post some tomorrow.
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Old 04-21-2012   #5
 
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Default Re: HiFi4250 4 Channel 250 x 4

price?
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Old 04-22-2012   #6
 
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Default Re: HiFi4250 4 Channel 250 x 4

wow that is alot of power. I may have to sell my two sq4160 to buy one
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Old 04-25-2012   #7
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Default Re: HiFi4250 4 Channel 250 x 4

Wow, also interested in knowing how much for this little BEAST.

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Old 04-25-2012   #8
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Default Re: HiFi4250 4 Channel 250 x 4

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Originally Posted by ravemeister View Post
Wow, also interested in knowing how much for this little BEAST.
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price?
$1199
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Old 04-25-2012   #9
 
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Default Re: HiFi4250 4 Channel 250 x 4

Wow!
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Old 04-25-2012   #10
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Default Re: HiFi4250 4 Channel 250 x 4

Wow! Great power, small footprint, and best of all "Made in USA".
Well done.
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Old 04-25-2012   #11
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Default Re: HiFi4250 4 Channel 250 x 4

Can this be bridged down to a 2 ohm load for a sub and if so how much power we talking? Any other specs on the amp? ie. signal to noise ratio, damping factor, thd. Another thing for me personally, what is the distance between the mounting points on each side?
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Old 04-25-2012   #12
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Quote:
Originally Posted by james2266 View Post
Can this be bridged down to a 2 ohm load for a sub and if so how much power we talking? Any other specs on the amp? ie. signal to noise ratio, damping factor, thd. Another thing for me personally, what is the distance between the mounting points on each side?
Yes you can bridge at 4ohm load for 900 watts I will post other info hopefully tomorrow. Spending time with the kids right now
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Old 04-25-2012   #13
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Default Re: HiFi4250 4 Channel 250 x 4

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Originally Posted by Ambassador View Post
Yes you can bridge at 4ohm load for 900 watts I will post other info hopefully tomorrow. Spending time with the kids right now
Be with your kids, that's more important for sure. I was wondering about bridging down to a 2 ohm load tho... I did see the 900 watts at 4 ohm that you posted at the top of the thread. My sub is 2 ohm tho. I do look forward to more specs later on
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Old 04-25-2012   #14
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Default Re: HiFi4250 4 Channel 250 x 4

Quote:
Originally Posted by james2266 View Post
Be with your kids, that's more important for sure. I was wondering about bridging down to a 2 ohm load tho... I did see the 900 watts at 4 ohm that you posted at the top of the thread. My sub is 2 ohm tho. I do look forward to more specs later on
Seeing that much power out of that footprint... I wouldn't count on a 2 ohm bridge stable amp. Unless it does exactly the same power as the 4 ohm bridged channels.

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Old 04-25-2012   #15
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Default Re: HiFi4250 4 Channel 250 x 4

Thats alot of power in a small foot print. I dont dig the cheap speaker plugs and the jumbled controls right next to the RCA inputs. For 1200 bucks, I personally would expect some more refinement. This is all just my opinion and I am not indicating anything about the performance of the amp.
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Old 04-25-2012   #16
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Quote:
Originally Posted by BeatsDownLow View Post
Thats alot of power in a small foot print. I dont dig the cheap speaker plugs and the jumbled controls right next to the RCA inputs. For 1200 bucks, I personally would expect some more refinement. This is all just my opinion and I am not indicating anything about the performance of the amp.
We appreciate and will consider your opinion in future projects.
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Old 04-25-2012   #17
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Default Re: HiFi4250 4 Channel 250 x 4

Quote:
Originally Posted by BeatsDownLow View Post
Thats alot of power in a small foot print. I dont dig the cheap speaker plugs and the jumbled controls right next to the RCA inputs. For 1200 bucks, I personally would expect some more refinement. This is all just my opinion and I am not indicating anything about the performance of the amp.
Also, because of the layout, the controls have to be in that position due to the internals of the amp.
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Old 04-26-2012   #18
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Default Re: HiFi4250 4 Channel 250 x 4

Quote:
Originally Posted by james2266 View Post
Can this be bridged down to a 2 ohm load for a sub and if so how much power we talking? Any other specs on the amp? ie. signal to noise ratio, damping factor, thd. Another thing for me personally, what is the distance between the mounting points on each side?
  • damping factor >170
  • thd .02%
Mounting points are 7" apart
  • S/N >101dB
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Old 04-26-2012   #19
 
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Default Re: HiFi4250 4 Channel 250 x 4

0_o
Are those 8-gauge power inputs? Please tell me my eyes are deceiving me...
And it features Burr Brown 'what' exactly?
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Old 04-26-2012   #20
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Default Re: HiFi4250 4 Channel 250 x 4

Quote:
Originally Posted by n8skow View Post
0_o
Are those 8-gauge power inputs? Please tell me my eyes are deceiving me...
And it features Burr Brown 'what' exactly?
Yes your eyes are deceiving you...they are NOT 8g power inputs...they are 4g.

and the amplifier features a Burr Brown op amp.
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Old 04-26-2012   #21
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Default Re: HiFi4250 4 Channel 250 x 4

Quote:
Originally Posted by Ambassador View Post
  • damping factor >170
  • thd .02%
Mounting points are 7" apart
  • S/N >101dB
Thanks for the info but is it 2 ohm stable bridged too?
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Old 04-26-2012   #22
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Default Re: HiFi4250 4 Channel 250 x 4

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Originally Posted by james2266 View Post
Thanks for the info but is it 2 ohm stable bridged too?
no it is 4ohm stable bridged.
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Old 02-20-2013   #23
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Default Re: HiFi4250 4 Channel 250 x 4



Insides of the HiFi4250d
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File Type: jpg hifi4250board.jpg (101.5 KB, 27 views)
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